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Application filed' October l2, 1921. Serial No. y5055.549.

ratchet', interlocking jaw' handles type7 in which the jawsfare adjustable longitudinally ot' the handle ct thetooland the Shanks that are rigid with the aws are `adjits'tahle transversely of the head along lines extend ing' diagonally through the head. The primary object of the invention is the provision of a wrench of this type which may be either manually adjusted or adjusted through the manipulation of a screw for properly locatingthe grippingjaws of the wrench.

To this end the invention consists in certain novel combinations and arrangements ot the jaws and their shanks in the ratchet head, and other connections, as will he hereinatter more fully pointed out and claimed;

ln the accompanying drawings l have illustrated one complete example ot `the physical embodiment ot' my invention wherein the parts are manually adjusted. and a modified construction thereof wherein the jaws are screw-adjusted, and the parts cornbined and arranged according' to the hest modes l have thus tar devised for the prac.

tical application ot' the principles ot my invention.

Figure 1 is a side view ot a ratchet wrenchy embodying my invention. I

Figure 2 is a top plan view of thc wrench, partly broken away to illustrate the reversible spring;- pressed ratchet, and from which the shanks and their jaws are omitted for convenience of illustration.

Figure 3 is a longitudinal sectional view through the wrench. as illustrated in Figure 2.

Figure 4t is al perspective view of' one of the shanks with its slidahle Figure 5 is a transverse sectional view through the ratchet head showing;r a modi-- tied form of exterior screw nut for adjust-` ing the jaws.

Figure 6 is a plan view vshowing` the ratchet head of Figure `5. and the relation ofthepwo shanks thereto. ,l Y

the preferred n of the illustrated in Figures i through 4 ot the drawings, the wrench or tool which 1s ot the ratchet type isv provided with the usual handle il, which isfft'ormed witha side plate Q and a detachable complementary plate 37 seplementary plates are provided with open, circular rings 2l' `and 3 to receive the ratchet head t, which is cylindrical in shape and 'cured to the handle by screw 3a. These comprovided'Y with a central annular7 exterior i row of ratchet teeth and by means of this row of teeththe hcadis retainedhetween the two rings 2 and 3 in order that it may he turned bodily when it iks-rigidly held `with the handlel. Aspring pressedl detent 6 is provided with a ratchet tooth 7 that. the ratchet teeth on the head, and this detent is encased. `within the socket 8 extending;

longitudinally of the handle plate 2, a spring i 9 being interposed in the socket to urge the detent into engagement with the ratchet head. The detent has a stem l() passing through the coiled spring and a button or head ll 'at its end hy means of which, `when the detent is withdrawn against the pressure ot spring 9, the detent may he turned on its axis to cause the ratchet tooth 7 to engage the opposite faces ot the ratchet teeth 5 when the movement of the handle l is reversed to reverse the movement of the wrench.

As seen in Figure 3 the ratchet head is provided with a pair ot transversely7 extendingr sockets l2 and 13 disposed diagonally of the head and crossing (ir-intersecting on different planes. heee sockets are open end passages extending` through the oppo site sides ot the head. and are designed to receive and retain a pair ot complementary7 slidahly adjustable Shanks 14 and crossed as indicated in Figure l. Each ot the shanks `has a rack face 16 and the pair of sh anks have complementary jaws 17 17 0pposed to one another and adjustableI toward and away from each other to adapt them for different sizes of holts or nuts or other objects. The crossed Shanks are arranged with their rack .ta-ces toward the axial centerof the ratchet head and the rack teeth of these rack faces are disposed ohliquely of the respective Shanks with the teeth of the crossed shanks in engagement at the point ot intersection.

Thus by grasping the two jaws, or the two opposite ends ofl the Shanks, in the hands, the chantre may he pushed or pulled tramsa versely of the ratchet head for adjusting the distance between the .two jaws. This action Icauses each shank to move through its socket with the teeth of the respective faces on the shanks interlocking and sliding into engagement across the diameter of the head. While the shankspass diagonally through the head, the resulting movements are synchronous, and the pair of jaws are either separated and moved away from the head, or brought to ward one another and toward the head, for proper adjustment of the jaws.

It desired, friction members as 18 may be threaded into complementary sockets in the walls of the sockets 12, 13 to engage 'faces of the shanks, and the intel-locked relation of the rackfaces of the Shanks, when pressure is applied by turning the wrench, will prevent slipping of the jaws ait'er they have been adjusted. Y

In `Figures and 6 the shanks 14 and 15 may be adjusted by turning the screw-nut 19 that is retainedin the ratchet head 4t by a screw 20, the screw nut engaging the rack faces 16 of the shanks to move them transversely of the head in manner similar to the manual adjustment in the. preceding figures of drawing.

What I yclaim and desire to secure by Letters Patent is1 1. The combination in a wrench with its head having transversely disposed, crossed socket-openings therethrough, of a pair or" slidably adjustable, complementary shanks in said socket-openings having opposed aws, and complementary .co-acting rack faces on adjoining faces of said adjustable shanks.

2. The combination in a tool as described with its head having crossed socket-openings extending therethrough, ot a pair of crossed, slidably adjustable, complementary shanks in said socketiopenings having opposed jaws, and rack teeth on adjoining facesr or said shanks in rictional engagement at the point i of intersection of: said Shanks.

In testimony whereof I atlix my' signature.

CHARLES c. oiBsoN. 

